


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
850 FNUS56 KSEW 312114 FWFSEW Fire Weather Planning Forecast for Western Washington National Weather Service Seattle WA 214 PM PDT Sun Aug 31 2025 .DISCUSSION...A slight chance of dry thunderstorms is forecast for the Cascades this afternoon (10-15%) as low pressure remains offshore. The majority of the thunderstorm dynamics are east of the Cascade crest, but some may linger on the western slopes for an isolated storm through this evening. Later in the week, temperatures warm up and dry out with hot, dry and unstable conditions by late week. Forecast for 20 foot wind speed (valleys and ridge tops) are 10 minute averages reflecting RAWS winds. WAZ649-011115- North and Central Coastal Strip- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly cloudy. Patchy dense fog after midnight. * Min temperature.......Around 56. * Max humidity..........93-100 percent. * 20-foot winds......... * Valleys/lwr slopes..West winds around 3 mph in the evening becoming light. * Ridges/upr slopes...West winds around 3 mph in the evening becoming light. * Mixing height.........400-700 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...5 percent. .LABOR DAY... * Sky/weather...........Partly sunny. Patchy dense fog in the morning. * Max temperature.......60-70. * Min humidity..........77-92 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming west around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming west around 4 mph in the afternoon. * Mixing height.........500-1400 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT... * Sky/weather...........Partly cloudy then becoming mostly cloudy. * Min temperature.......Around 54. * Max humidity..........89-100 percent. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds around 3 mph in the evening becoming light. * Ridges/upr slopes...West winds around 4 mph in the evening becoming light. * Mixing height.........400-900 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......63-73. * Min humidity..........72-87 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 6 mph in the afternoon. * Ridges/upr slopes...Northwest winds 3 to 6 mph. * Mixing height.........500-1300 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 50s. Northwest winds 4 to 7 mph. .WEDNESDAY...Partly sunny. Highs 67 to 77. Northwest winds 3 to 6 mph. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid 50s. Northwest winds around 5 mph. .THURSDAY...Partly sunny. Highs 65 to 75. Northwest winds around 3 mph. .THURSDAY NIGHT...Mostly cloudy. Lows in the mid 50s. Northwest winds around 3 mph. .FRIDAY...Partly sunny. Highs 64 to 74. West winds around 3 mph. .SATURDAY...Mostly cloudy. Lows in the mid 50s. Highs in the upper 60s. .SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs in the upper 60s. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ650-011115- North Coastal Lowlands- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly cloudy. Patchy fog after midnight. * Min temperature.......Around 56. * Max humidity..........81-96 percent. * 20-foot winds......... * Valleys/lwr slopes..West winds up to 3 mph. * Ridges/upr slopes...West winds around 3 mph in the evening becoming light. * Mixing height.........600-1000 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...8 percent. .LABOR DAY... * Sky/weather...........Partly sunny. Patchy dense fog in the morning. * Max temperature.......65-75...except 62-72 ridges. * Min humidity..........61-76 percent...except 71-83 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming west around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming west around 4 mph in the afternoon. * Mixing height.........900-1900 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......51-61. * Max humidity..........78-93 percent. * 20-foot winds......... * Valleys/lwr slopes..West winds around 3 mph in the evening becoming light. * Ridges/upr slopes...West winds around 3 mph in the evening becoming light. * Mixing height.........600-1300 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......68-78. * Min humidity..........61-76 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming northwest around 5 mph in the afternoon. * Mixing height.........700-1700 ft AGL. * Transport winds.......North around 5 mph shifting to the northwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT...Mostly clear. Lows 55 to 65. Northwest winds around 3 mph in the evening becoming light. .WEDNESDAY...Warmer. Mostly sunny. Highs 75 to 85. Light winds becoming west around 4 mph in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. Lows 54 to 64. Northwest winds around 3 mph. .THURSDAY...Partly sunny. Highs 72 to 82. Light winds. .THURSDAY NIGHT...Mostly cloudy. Lows 53 to 63. Light winds. .FRIDAY...Partly sunny. Highs 70 to 80. Light winds. .SATURDAY...Mostly cloudy. Lows 53 to 63. Highs 68 to 78. .SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs 67 to 77. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ651-011115- Central Coastal Lowlands- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly cloudy. * Min temperature.......Around 56. * Max humidity..........85-100 percent. * 20-foot winds......... * Valleys/lwr slopes..West winds around 4 mph in the evening becoming light. * Ridges/upr slopes...West winds 3 to 6 mph. * Mixing height.........600-1100 ft AGL. * Transport winds.......West 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .LABOR DAY... * Sky/weather...........Partly sunny. * Max temperature.......67-77...except 64-74 ridges. * Min humidity..........64-79 percent...except 77-82 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming west around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming west around 3 mph in the afternoon. * Mixing height.........900-1900 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. Patchy fog after midnight. * Min temperature.......50-60. * Max humidity..........82-97 percent. * 20-foot winds......... * Valleys/lwr slopes..West winds around 4 mph in the evening becoming light. * Ridges/upr slopes...West winds around 4 mph in the evening becoming light. * Mixing height.........500-1500 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. * Max temperature.......75-85...except 71-81 ridges. * Min humidity..........56-71 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 3 mph in the afternoon. * Ridges/upr slopes...Light winds. * Mixing height.........900-1900 ft AGL. * Transport winds.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT...Mostly clear. Lows 53 to 63. West winds around 4 mph in the evening becoming light. .WEDNESDAY...Mostly sunny. Highs 77 to 87. Light winds becoming west around 4 mph in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. Lows 53 to 63. West winds around 3 mph. .THURSDAY...Partly sunny. Highs 74 to 84. Light winds. .THURSDAY NIGHT...Mostly cloudy. Lows in the upper 50s. West winds around 3 mph. .FRIDAY...Partly sunny. Highs 71 to 81. Light winds. .SATURDAY...Mostly cloudy. Lows in the upper 50s. Highs 70 to 80 valleys...65 to 75 ridges. .SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs 69 to 79 valleys...63 to 73 ridges. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ652-011115- West Portion of the Olympic Mountains- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly cloudy then becoming partly cloudy. * Min temperature.......51-61...except 48-58 ridges. * Max humidity..........77-92 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 1 to 3 mph. * Ridges/upr slopes...West winds around 3 mph in the evening becoming light. * Mixing height.........300-600 ft AGL. * Transport winds.......West around 5 mph shifting to the southeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...7 percent. * Freezing level........12500 Feet. .LABOR DAY... * Sky/weather...........Mostly sunny. * Max temperature.......64-74...except 61-71 ridges. * Min humidity..........58-73 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 1 to 4 mph. * Ridges/upr slopes...Light winds becoming southwest around 4 mph in the afternoon. * Mixing height.........500-1500 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........13000 Feet. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......49-59. * Max humidity..........72-87 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...West winds around 3 mph in the evening becoming light. * Mixing height.........300-800 ft AGL. * Transport winds.......Southwest around 5 mph shifting to the southeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........13500 Feet. .TUESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......72-82...except 68-78 ridges. * Min humidity..........52-67 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...Northeast winds around 3 mph shifting to the west around 4 mph in the afternoon. * Mixing height.........600-1600 ft AGL. * Transport winds.......East around 5 mph shifting to the southwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........14500 Feet. .TUESDAY NIGHT...Mostly clear. Freezing level 15000 feet. Lows in the lower 60s. Northwest winds around 3 mph shifting to the northeast after midnight. .WEDNESDAY...Warmer, sunny. Freezing level 15000 feet. Highs 74 to 84. Northeast winds around 3 mph shifting to the west around 4 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Freezing level 15000 feet. Lows in the lower 60s. Northwest winds around 3 mph. .THURSDAY...Mostly sunny. Freezing level 14500 feet. Highs 72 to 82. Southwest winds around 3 mph. .THURSDAY NIGHT...Partly cloudy. Freezing level 14000 feet. Lows in the lower 60s. Light winds. .FRIDAY...Mostly sunny. Freezing level 13500 feet. Highs 67 to 77. Light winds. .SATURDAY...Partly cloudy. Freezing level 14000 feet. Lows in the upper 50s. Highs 65 to 75. .SUNDAY...Partly cloudy. Freezing level 13000 feet. Lows in the mid 50s. Highs 63 to 73. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ661-011115- East Portion of the Olympic Mountains- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......47-57. * Max humidity..........78-93 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...Southwest winds around 3 mph in the evening becoming light. * Mixing height.........400-800 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...6 percent. * Freezing level........12500 Feet. .LABOR DAY... * Sky/weather...........Mostly sunny. * Max temperature.......67-77...except 61-71 ridges. * Min humidity..........49-64 percent...except 44-59 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 4 mph. * Ridges/upr slopes...Light winds becoming south around 4 mph in the afternoon. * Mixing height.........600-1600 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........13000 Feet. .MONDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......49-59. * Max humidity..........74-89 percent...except 68-83 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...West winds 3 to 5 mph. * Mixing height.........400-1000 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........14000 Feet. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......73-83...except 68-78 ridges. * Min humidity..........49-64 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...North winds around 3 mph shifting to the northeast in the afternoon. * Mixing height.........700-1700 ft AGL. * Transport winds.......Southeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........14500 Feet. .TUESDAY NIGHT...Mostly clear. Freezing level 15000 feet. Lows in the lower 60s. West winds 3 to 5 mph. .WEDNESDAY...Sunny. Freezing level 15000 feet. Highs 77 to 87 valleys...70 to 80 ridges. Northwest winds 3 to 5 mph. .WEDNESDAY NIGHT...Mostly clear. Freezing level 15000 feet. Lows 57 to 67. Light winds. .THURSDAY...Mostly sunny. Freezing level 14500 feet. Highs 75 to 85 valleys...68 to 78 ridges. Light winds. .THURSDAY NIGHT...Partly cloudy. Freezing level 14000 feet. Lows around 60. Light winds. .FRIDAY...Mostly sunny. Freezing level 13500 feet. Highs 71 to 81 valleys...64 to 74 ridges. Light winds. .SATURDAY...Partly cloudy. Freezing level 14000 feet. Lows 53 to 63. Highs 68 to 78 valleys...61 to 71 ridges. .SUNDAY...Partly cloudy. Freezing level 13000 feet. Lows 51 to 61. Highs 66 to 76 valleys...58 to 68 ridges. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ653-011115- Strait of Juan De Fuca and Northwest Interior Lowlands- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min temperature.......51-61. * Max humidity..........79-94 percent. * 20-foot winds.........Southwest winds 3 to 5 mph. * Mixing height.........500-600 ft AGL. * Transport winds.......Southwest 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...14 percent. .LABOR DAY... * Sky/weather...........Partly sunny. * Max temperature.......66-76. * Min humidity..........59-74 percent. * 20-foot winds.........Light winds becoming west around 4 mph in the afternoon. * Mixing height.........600-1100 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......50-60. * Max humidity..........77-92 percent. * 20-foot winds.........West winds 3 to 5 mph. * Mixing height.........500-700 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .TUESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......69-79. * Min humidity..........60-75 percent. * 20-foot winds.........Light winds becoming northwest around 4 mph in the afternoon. * Mixing height.........500-1100 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT...Mostly clear. Lows 54 to 64. West winds around 4 mph in the evening becoming light. .WEDNESDAY...Sunny. Highs 74 to 84. Light winds becoming northwest around 4 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 54 to 64. West winds around 3 mph. .THURSDAY...Mostly sunny. Highs 73 to 83. Light winds. .THURSDAY NIGHT...Partly cloudy. Lows 54 to 64. West winds around 3 mph. .FRIDAY...Mostly sunny. Highs 71 to 81. Light winds. .SATURDAY...Partly cloudy. Lows 53 to 63. Highs 70 to 80. .SUNDAY...Partly cloudy. Lows in the upper 50s. Highs 68 to 78. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ654-011115- Central and South Puget Sound Lowlands- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. * Min temperature.......52-62. * Max humidity..........79-94 percent. * 20-foot winds.........Southwest winds around 4 mph in the evening becoming light. * Mixing height.........500-1400 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...4 percent. .LABOR DAY... * Sky/weather...........Partly sunny. * Max temperature.......70-80. * Min humidity..........53-68 percent. * 20-foot winds.........Light winds becoming southwest around 4 mph in the afternoon. * Mixing height.........1200-2200 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......51-61. * Max humidity..........76-91 percent. * 20-foot winds.........Northwest winds around 3 mph in the evening becoming light. * Mixing height.........600-1600 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......72-82. * Min humidity..........53-68 percent. * 20-foot winds.........Light winds becoming northeast around 5 mph in the afternoon. * Mixing height.........900-1900 ft AGL. * Transport winds.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT...Mostly clear. Lows 55 to 65. North winds 3 to 5 mph. .WEDNESDAY...Warmer, sunny. Highs 80 to 90. Light winds becoming northeast around 5 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 56 to 66. Northwest winds around 3 mph. .THURSDAY...Mostly sunny. Highs 78 to 88. Light winds. .THURSDAY NIGHT...Partly cloudy. Lows around 60. West winds around 3 mph. .FRIDAY...Partly sunny. Highs around 80. Southwest winds around 3 mph. .SATURDAY...Partly cloudy. Lows in the upper 50s. Highs in the upper 70s. .SUNDAY...Mostly cloudy. Lows 53 to 63. Highs in the mid 70s. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ655-011115- Black Hills and Southwest Interior Lowlands- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Patchy fog after midnight. * Min temperature.......52-62. * Max humidity..........85-100 percent. * 20-foot winds.........West winds around 4 mph in the evening becoming light. * Mixing height.........600-1600 ft AGL. * Transport winds.......West 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .LABOR DAY... * Sky/weather...........Partly sunny. Patchy fog in the morning. * Max temperature.......72-82. * Min humidity..........49-64 percent. * 20-foot winds.........Light winds becoming west around 3 mph in the afternoon. * Mixing height.........1200-2200 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. Patchy fog after midnight. * Min temperature.......53-63. * Max humidity..........79-94 percent. * 20-foot winds.........Northwest winds around 3 mph in the evening becoming light. * Mixing height.........700-1700 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. * Max temperature.......80-90. * Min humidity..........42-57 percent. * 20-foot winds.........Light winds becoming north around 3 mph in the afternoon. * Mixing height.........1100-2100 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT...Mostly clear. Lows 55 to 65. Northwest winds around 3 mph in the evening becoming light. .WEDNESDAY...Mostly sunny. Highs 83 to 93. Light winds becoming northwest around 4 mph in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. Lows 55 to 65. Light winds. .THURSDAY...Mostly sunny. Highs 80 to 90. Light winds. .THURSDAY NIGHT...Partly cloudy. Lows 55 to 65. Light winds. .FRIDAY...Mostly sunny. Highs in the lower 80s. Light winds. .SATURDAY...Mostly cloudy. Lows 53 to 63. Highs in the upper 70s. .SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs in the upper 70s. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ656-011115- Northeast Puget Sound Lowlands Generally Below 1500 Feet- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min temperature.......53-63. * Max humidity..........81-96 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........900-1400 ft AGL. * Transport winds.......Southwest around 5 mph shifting to the southeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...18 percent. .LABOR DAY... * Sky/weather...........Partly sunny. Patchy fog in the morning. * Max temperature.......70-80. * Min humidity..........51-66 percent. * 20-foot winds.........Light winds becoming west around 4 mph in the afternoon. * Mixing height.........1300-2300 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......56-66. * Max humidity..........79-94 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........900-1700 ft AGL. * Transport winds.......West around 5 mph shifting to the northeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .TUESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......78-88. * Min humidity..........48-63 percent. * 20-foot winds.........Light winds becoming west around 4 mph in the afternoon. * Mixing height.........1100-2100 ft AGL. * Transport winds.......Northeast around 5 mph shifting to the northwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT...Mostly clear. Lows 58 to 68. West winds around 3 mph shifting to the northeast after midnight. .WEDNESDAY...Sunny. Highs 83 to 93. Light winds becoming west around 4 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 58 to 68. Light winds. .THURSDAY...Mostly sunny. Highs 80 to 90. Light winds. .THURSDAY NIGHT...Partly cloudy. Lows 57 to 67. Light winds. .FRIDAY...Mostly sunny. Highs 76 to 86. Light winds. .SATURDAY...Partly cloudy. Lows 55 to 65. Highs 74 to 84. .SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs 72 to 82. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ657-011115- Southeast Puget Sound Lowlands Generally Below 1500 Feet- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Patchy fog after midnight. * Min temperature.......51-61. * Max humidity..........82-97 percent. * 20-foot winds.........Southwest winds up to 3 mph. * Mixing height.........800-1800 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...6 percent. .LABOR DAY... * Sky/weather...........Partly sunny. Patchy fog in the morning. * Max temperature.......73-83. * Min humidity..........52-67 percent. * 20-foot winds.........West winds up to 3 mph. * Mixing height.........1200-2200 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. Patchy fog after midnight. * Min temperature.......52-62. * Max humidity..........81-96 percent. * 20-foot winds.........North winds up to 3 mph. * Mixing height.........700-1700 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. * Max temperature.......78-88. * Min humidity..........51-66 percent. * 20-foot winds.........Light winds becoming northwest around 3 mph in the afternoon. * Mixing height.........1000-2000 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT...Mostly clear. Lows around 60. North winds around 3 mph in the evening becoming light. .WEDNESDAY...Sunny. Highs in the upper 80s. Light winds becoming northwest around 4 mph in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light winds. .THURSDAY...Mostly sunny. Highs in the mid 80s. Light winds. .THURSDAY NIGHT...Partly cloudy. Lows 56 to 66. Light winds. .FRIDAY...Mostly sunny. Highs in the lower 80s. Light winds. .SATURDAY...Mostly cloudy. Lows in the upper 50s. Highs around 80. .SUNDAY...Mostly cloudy. Lows 54 to 64. Highs in the upper 70s. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ658-011115- West Slopes of the North Cascades Generally above 1500 Feet- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min temperature.......53-63...except 50-60 ridges. * Max humidity..........70-85 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...Southwest winds around 4 mph shifting to the southeast around 3 mph after midnight. * Mixing height.........500-1000 ft AGL. * Transport winds.......Southwest around 5 mph shifting to the southeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...18 percent. * Freezing level........13500 Feet. .LABOR DAY... * Sky/weather...........Mostly sunny. * Max temperature.......75-85...except 70-80 ridges. * Min humidity..........43-58 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 4 mph. * Ridges/upr slopes...Light winds becoming southwest around 5 mph in the afternoon. * Mixing height.........900-1900 ft AGL. * Transport winds.......East around 5 mph shifting to the south in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. * Freezing level........13500 Feet. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......55-65. * Max humidity..........73-88 percent...except 68-83 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 3 mph. * Ridges/upr slopes...West winds around 4 mph shifting to the east around 5 mph after midnight. * Mixing height.........500-1200 ft AGL. * Transport winds.......Southwest around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. * Freezing level........14000 Feet. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......80-90...except 75-85 ridges. * Min humidity..........43-58 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 4 mph. * Ridges/upr slopes...East winds around 5 mph shifting to the west around 4 mph in the afternoon. * Mixing height.........500 ft AGL increasing to 3500 ft AGL in the afternoon. * Transport winds.......East around 5 mph shifting to the southwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........14500 Feet. .TUESDAY NIGHT...Mostly clear. Freezing level 15000 feet. Lows 58 to 68. West winds around 3 mph shifting to the east around 5 mph after midnight. .WEDNESDAY...Sunny. Freezing level 15000 feet. Highs 82 to 92 valleys...76 to 86 ridges. East winds around 5 mph shifting to the west around 4 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Freezing level 15000 feet. Lows 57 to 67. North winds around 4 mph. .THURSDAY...Sunny. Freezing level 14500 feet. Highs 79 to 89 valleys...73 to 83 ridges. South winds around 3 mph. .THURSDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows 56 to 66. Southwest winds around 3 mph. .FRIDAY...Mostly sunny. Freezing level 14000 feet. Highs 73 to 83 valleys...67 to 77 ridges. Southwest winds around 3 mph. .SATURDAY...Partly cloudy. Freezing level 14000 feet. Lows 54 to 64. Highs 70 to 80 valleys...63 to 73 ridges. .SUNDAY...Mostly cloudy. Freezing level 13000 feet. Lows 51 to 61. Highs 66 to 76 valleys...58 to 68 ridges. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ WAZ659-011115- West Slopes of the Central Cascades Generally above 1500 Feet- 214 PM PDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Haze and patchy dense fog after midnight. * Min temperature.......49-59. * Max humidity..........81-96 percent...except 72-87 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 1 to 2 mph. * Ridges/upr slopes...West winds around 3 mph in the evening becoming light. * Mixing height.........500-1000 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...6 percent. * Freezing level........13500 Feet. .LABOR DAY... * Sky/weather...........Mostly sunny. Patchy dense fog in the morning. * Max temperature.......72-82...except 65-75 ridges. * Min humidity..........47-62 percent...except 42-57 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 1 to 4 mph. * Ridges/upr slopes...Light winds becoming west around 4 mph in the afternoon. * Mixing height.........700-1700 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........13500 Feet. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......52-62. * Max humidity..........79-94 percent...except 69-84 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...Northwest winds around 3 mph shifting to the east after midnight. * Mixing height.........400-1000 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........14000 Feet. .TUESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......80-90...except 73-83 ridges. * Min humidity..........42-57 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...East winds around 3 mph shifting to the northwest around 4 mph in the afternoon. * Mixing height.........400 ft AGL increasing to 3100 ft AGL in the afternoon. * Transport winds.......East around 5 mph shifting to the southwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........14500 Feet. .TUESDAY NIGHT...Mostly clear. Freezing level 15000 feet. Lows 58 to 68. Northwest winds around 3 mph shifting to the east around 4 mph after midnight. .WEDNESDAY...Sunny. Freezing level 15000 feet. Highs 81 to 91 valleys...76 to 86 ridges. East winds around 3 mph shifting to the northwest around 4 mph in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. Freezing level 15000 feet. Lows 58 to 68. Northwest winds around 3 mph. .THURSDAY...Mostly sunny. Freezing level 14500 feet. Highs 79 to 89 valleys...72 to 82 ridges. Light winds. .THURSDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows 56 to 66. Light winds. .FRIDAY...Mostly sunny. Freezing level 14000 feet. Highs 74 to 84 valleys...68 to 78 ridges. Light winds. .SATURDAY...Mostly cloudy. Freezing level 14000 feet. Lows 53 to 63. Highs 71 to 81 valleys...64 to 74 ridges. .SUNDAY...Mostly cloudy. Freezing level 13500 feet. Lows 50 to 60. Highs 67 to 77 valleys...59 to 69 ridges. .8 TO 14 day Outlook for Sep 08 - 14 2025 Above normal temperatures and above normal precipitation. $$ www.weather.gov/seattle